1.R pin,spring pin 2.Size:M3*36 3.Material:carbon steel 4.Surface ... steel,iron,common steel,kirsite4.Finish:nickel,zinc plated,black,color,black oxide Packaging & Delivery details1.Packaging: polly bag,small box ... ,Shanghai Hadiwei Fasteners Co.,Ltd ,Shanghai XiajuanFasteners Co.,Ltd R pin R shaped ...